CEWEP Waste-to-Energy Congress on »Energy and … · 6-7 September 2012: 6th CEWEP Waste-to-Energy...

6-7 September 2012: 6th CEWEP Waste-to-Energy Congress on "Energy and Resource Efficiency" in Würzburg

CEWEP Waste-to-Energy Congress on»Energy and Resource Efficiency«

Technical Visit to the Würzburg Waste-to-Energy Plant (10:00 –12:00)


The Waste-to-Energy PlantDas Müllheizkraftwerk Würzburg

Armin Lewetz Bogdan Dima

- section manager - operations manager

Stadtwerke Würzburg AG Stadtwerke Würzburg AG

07.09.2012, Würzburg


The WVV Group

• Energy- electricity

- gas

- district heating

- drinking water

• Traffic- trams and buses

- car parks and parking areas

- harbours

• Environment- recycling

- composting


51.212

64.757

2.410

1.263

627

36.771

8,3

2.629,9

1.513,9

299,6

2011

to

to

Thousand

Thousand to

Thousand

Thousand

Mio. m3

Mio. kWh

Mio. kWh

Mio. kWh

49.911

85.430

2.288

1.327

532

36.689

8,2

2.976,9

1.398,4

347,7

2010

1.4991.330Materials handling

2.1752.293Short-term parker

Environment

92.69881.049Recycling of

commercial waste

48.21651.633Recycling of organic

waste

512513Passenger ships

35.48137.120Passengers

(trams/busses)

Traffic

2.682,82.830,0Gas

287,0308,2District heating

8,58,1Drinking water

1.109,51.124,5Electricity

20082009Energy

Key Data of the WVV Group


Management board: Dipl.-Kfm. Thomas Schäfer

Chairperson of the supervisory City Councillor Dr. Christine Bötsch

board:

Establishment of the corporation: 1962

NACE- Code NACE 35.11 – generation of electricity

Function Provision of energy and drinking water supplies

Business volume: 461,2 Mio. Euros (2011)

Eco-management and audit Waste-to-Energy Plant Würzburg

Scheme (EMAS): Gattingerstraße 31

97076 Würzburg

Distribution of Ownership

WVV

TWV

City of Würzburg

STW Others

Thüga AG

100 %22,73 % 20,45 % 56,82 %

WVV Municipal Supply and Transport

STW City energy supplier

TWV Supply of drinking water

EG-M Energy production – waste-to-energy

plant

EG-M


History and Development of the Waste-to-Energy Plant Würzburg

The plant is owned by Zweckverband Abfallwirtschaft Würzburg (Joint Waste Management Authority) whichconsists of the city of Würzburg and the counties of Würzburg and Kitzingen. The STW AG (city energysupplier) is commissioned by the Joint Waste Management Authority to operate the Würzburg waste-to-energy plant. The plant disposes the waste of approx. 900,000 residents.

1979 Foundation of the Joint Waste Management Authority of the district Würzburg - ZVAWS

1980 Official permission for the construction of the waste plant lines 1 and 2

1984 Initial operation of lines 1 and 2

1992 Extension of the waste pit

1993-95 Modernisation of the flue gas cleaning lines 1 and 2

1996 Official permission for the construction of the waste plant line 3

1996-98 Construction and initial operation of line 3

2001-03 Grate modernisation of lines 1 and 2

2005 Modernisation of grate line 3

2006 Optimisation of NOx-removal in high-dust areas/catalytic denitrification of line 3

2009 Construction of a gas steam preheater for lines 1 und 2 for NOX – catalytic converters


Key Figures of the Waste-to-Energy Plant

Input 2007 2008 2009 2010 2011

Waste Thousand t. 205,85 210,92 208,73 204,61 202,36

Sludge Thousand t. 9,58 7,68 9,91 8,45 8,19

Heating oil Thousand t. 1,00 0,60 0,49 0,97 0,70

Heating oil kg/t waste 4,65 2,73 2,24 4,55 3,32

Output – Energy 2007 2008 2009 2010 2011

Energy export

Electricity export kWh/t waste 444 447 437 429 416

Steam export kWh/t waste 132 166 166 186 207

Plant energy usage

Electricity kWh/t waste 123 126 125 129 129

Steam kWh/t waste 174 113 51 168 214

Total Energy Production kWh/t waste 873 852 779 912 966

Calorific value of the waste MJ/kg 10,56 10,436 10,50 10,57 10,70

Energy efficiency (R1) 0,63 0,63 0,62 0,60 0,63


The waste-to-energy plant in 1984.

The waste-to-energy plant in 2012.

Figures of the Plant

Waste pit

Capacity of the pit ca. 9.000 m3

Permanently vacant capacity ca. 3.000 m3 (ca. 5 days)

Number of tipping sites 10

Waste burning capacity

Lines 1 und 2 8,0 t/h each

Lines 3 15,0 t/h

Steam generator Line 1 und Line 2

Steam temperature 415 °CSteam pressure 42 bar

Steam output 28,0 t/h

Steam generator Line 3

Steam temperature 415 °CSteam pressure 42 bar

Steam output 60,0 t/h


Figures of the Plant

Steam Turbo-Alternator Set (STAS)

1) Steam turbines STAS 1 STAS 2

Year of construction 1983 1998

Performance 11.550 kW 16.035 kW

Speed 7.100 min-1 7.500

Steam pressure/temp. 40 bar, 400 °C 40 bar, 400 °CSteam extraction 6,3 bar/200°C 4,25 bar/175 °C

2) Generator

Year of construction 1983 1998

Performance 12,85 MVA 20,044 MVA

Voltage 6.300 V 6.300 V

Speed 1.500 min-1 1.500 min-1


1966

The Waste-to-Energy Plant Würzburg – an Animated Illustration of line 3

engl_Version12_07_10\Start.swf


Generation of Electricity and Steam

Network for district heating

Würzburg

steam turbine TS II

Main

steam turbine TS III

natural gas

oil

Peaking service

heat station

Sanderau

und

Elferweg

Waste

TS 1 TS 2

K 1 K 2 K 3

Waste-to-energy plant

20 kV

BHKW

natural gas

Boiler ISGT800A+

gas turbine I

SGT700A+

gas turbine II

natural gas

Boiler II

E.ON-Network110 kV


HW Sanderau

HW Faulenberg

HW Elferweg

MHKW

HKW

FestungMarienberg

I-OstSchürer Str.Altstadt

Sanderau

Zellerau

Main

+78 m

+14 m

+68 m+68 m

+14 m

+100 m

Supply of District Heating in Würzburg

Network for district heating since 1952

HKW, approx. 90 % of annual steam heat production

MHKW, approx.10 % d of annual steam heat production

HW Sanderau und HW Elferweg (peaking service heat station)

Dampfnetz

Müllheizkraftwerk

Heizkraftwerk


Environmental management system

Registration in the EMAS register

• EMAS - Europe-wide regulations for

environmental management and audit

scheme

• Application of EMAS in all "production

facilities" of the WVV Group

• EMAS certification of the plant since

1998

• Regular communication through

sustainability reporting


Tour of the Plant

Please form three groups to visit the waste-to-energy plant. We kindly request you to wear a helmet

during the tour. The following routes will be taken:

•Group 1 (with Mr. X): first to the rubbish crane, from there with the elevator line 3 down to the grate

incineration,and to the steam turbine and operator room; return to the conference venue by bus

•Group 2 (with Mr. Y): first downstairs to the operator room, then to the steam turbine, from there to the

grate incineration, with the elevator line 3 to the rubbish crane; return to the conference venue by bus

•Group 3 (with Mr. Z): first downstairs to the grate incineration, then to the steam turbine, from there to

the operator room, then with the elevator line ½ to the rubbish crane; return to the conference venue

by bus


Thank you for your attention!

CEWEP Waste-to-Energy Congress on »Energy and … · 6-7 September 2012: 6th CEWEP Waste-to-Energy...

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Transcript of CEWEP Waste-to-Energy Congress on »Energy and … · 6-7 September 2012: 6th CEWEP Waste-to-Energy...